1HFF

NMR solution structures of the vMIP-II 1-10 peptide from Kaposi's sarcoma-associated herpesvirus.


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 55 
  • Conformers Submitted: 55 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure/Function of Human Herpesvirus-8 Mip-II (1-71) and the Antagonist N-Terminal Segment (1-10)

Crump, M.P.Elisseeva, E.Gong, J.H.Clark-Lewis, I.Sykes, B.D.

(2001) FEBS Lett. 489: 171

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Kaposi's sarcoma-associated herpesvirus encodes a chemokine called vMIP-II that has been shown to be a broad range human chemokine receptor antagonist. Two N-terminal peptides, vMIP-II(1-10) and vMIP-II(1-11)dimer (dimerised through Cys11) were synth ...

    Kaposi's sarcoma-associated herpesvirus encodes a chemokine called vMIP-II that has been shown to be a broad range human chemokine receptor antagonist. Two N-terminal peptides, vMIP-II(1-10) and vMIP-II(1-11)dimer (dimerised through Cys11) were synthesised. Both peptides are shown to bind the CXC chemokine receptor 4 (CXCR4). vMIP-II(1-10) was 1400-fold less potent than the native protein whilst the vMIP-II(1-11)dimer was only 180-fold less potent. In addition, both peptides are CXCR4 antagonists. Through analysis of non-standard, long mixing time two-dimensional nuclear Overhauser enhancement spectroscopy experiments, 13C relaxation data and amide chemical shift temperature gradients for the N-terminus of vMIP-II, we show that this region populates a turn-like structure over residues 5-8, both in the presence and absence of the full protein scaffold. This major conformation is likely to be in fast exchange with other conformational states but it has not previously been detected in monomeric chemokine structures. This and other studies [Elisseeva et al. (2000) J. Biol. Chem. 275, 26799-26805] suggest that there may be a link between the structuring of the short N-terminal chemokine peptides and their ability to bind their receptor.


    Organizational Affiliation

    Protein Engineering Network of Centers of Excellence, Department of Biochemistry, Heritage Medical Research Center, University of Alberta, Edmonton, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VIRAL MACROPHAGE INFLAMMATORY PROTEIN-II
A
10Human herpesvirus 8 type P (isolate GK18)Mutation(s): 0 
Gene Names: ORF K4
Find proteins for Q98157 (Human herpesvirus 8 type P (isolate GK18))
Go to UniProtKB:  Q98157
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 55 
  • Conformers Submitted: 55 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 
  • Olderado: 1HFF Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-07
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance